水田多年生雑草ヒルムシロの生理生態学的研究 : 第5報除草剤に対する感受性の種内変異

概要

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Differences in the sensitivity to the herbicide, simetryn, were examined in 12 strains. Significant differences were detected in their sensitivity to the herbicide when the sensitivity was tested by the chlorophyll retention of leaf discs (1.5cm in diameter) from leaves of the 12 strains placed in the herbicide solution. Niigata and Saitama strains were found to be extremely sensitive to the herbicide, whereas the Miyazaki strain was found to be the least sensitive. In general, strains from northern and eastern Japan showed a high degree of sensitivity to the herbicide and those from western Japan showed a rather low degree of sensitivity. And a highly significant statistical correlation was detected between the absorbancy of extracts from simetryn and those from leaf discs treated with water. The strains with a large amout of chlorophyll per unit leaf area sistant) to the herbicide, simetryn.
日本雑草学会の論文
1985-01-28